CN101420432B - Implementing method, system and apparatus for IMS listening - Google Patents
Implementing method, system and apparatus for IMS listening Download PDFInfo
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- H04L63/30—Network architectures or network communication protocols for network security for supporting lawful interception, monitoring or retaining of communications or communication related information
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Abstract
An embodiment of the invention discloses a method for realizing IMS monitoring, a system and a device thereof, wherein the method comprises the following steps: allocating a medium anchoring point for the communication sides; and duplicating the communication content when the communication sides do communication through the medium anchoring point for completing the monitoring to the communication content. According to the invention, the monitoring to the communication content can be realized on the medium anchoring point and is not compulsorily realized by the existing medium access device, thereby realizing the centralized monitoring of medium on IMS and ensuring that the subscribers which are accessed into the IMS with various modes can realize centralized monitoring of medium on the IMS core. No requirement exists for the access side device, and furthermore expanded private interface is not required between the IMS core and the access side device.
Description
Technical field
The present invention relates to communication technical field, particularly relate to implementation method, system and device that a kind of IMS monitors.
Background technology
IMS (IP Multimedia Subsystem; Internet protocol multimedia subsystem) be upper strata control signaling and media delivery bearer path through adopting packet domain; And with SIP (Session Initial Protocol; Session initiation protocol), thereby business control is separated the multimedia service that provides abundant with carrying control as professional control protocol.IMS is the objective network of telecommunications core network, in telecommunications network, occupies crucial position, merges the integration capability that moves and fix multiple access network, the support of increasing acquisition telecom equipment manufacturers and operator easily.
Lawful Interception be national security community under the mandate of law, specific intercept target is set, and the dialog events information and the Content of communciation of specific intercept target are delivered to the release mechanism appointment through special interface listening center on communication apparatus.Listening center can restore by the communication event of intercept target and Content of communciation according to these information, reaches the purpose of monitoring.In the IMS network, also should realize Lawful Interception, IMS monitors and is meant through core net and will be anchored in the medium veil unit of IMS Core (core) control by the Media Stream of monitoring session, and the Media Stream of being monitored session is implemented monitoring.
In the prior art; Through at CSCF (Call Session Control Function; Call conversation control function entity) goes up the listening mode of confirming session; By P-CSCF (proxy CSCF) control Access Border Gateway Function (access borde gateway) duplicate media stream, thus the dialog context of copy session, i.e. and IMS user's monitoring realizes on the access borde gateway.P-CSCF is when obtaining being linked into the user's in IMS territory IMPU (IP Multimedia Public Identity, IMS has ID) information through this P-CSCF, and whether needs are monitored to judge session according to IMPU information.When this user need monitor; P-CSCF flows to LEMF (Law Enforcement Monitoring Facility through the medium of the control of the Ia interface between Gq ' interface, SPDF and the Access Border Gateway Function between this P-CSCF and the SPDF (service strategy determination functional entity) Access Border Gateway Function copy session; Legal monitoring device) on, this LEMF is used for being provided with, safeguards, controls all monitoring incidents.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
Need in the prior art to accomplish snoop procedure, and above-mentioned interface does not have unified standard through the interface between interface, SPDF and the Access Border Gateway Function between P-CSCF and the SPDF, very difficult when butt joint.And when on the IMS core supplementary service taking place; Call signaling and Media Stream and the P-CSCF and the Access Border Gateway Function that belong to without former called subscriber use the affiliated P-CSCF control Access Border Gateway Function of intercepted user to duplicate medium and monitor the monitoring that just can not realize supplementary service.When the user roamed into other network, user's access control was realized by the P-CSCF of roaming network, rather than the P-CSCF of home network, in home network, can't carry out media monitoring to the user who roams into other network like this.
Summary of the invention
Implementation method, system and device that the embodiment of the invention provides a kind of IMS to monitor are to monitor the terminal use in the IMS system.
In order to achieve the above object, the embodiment of the invention has proposed the implementation method that a kind of IMS monitors, and comprising:
Be communication side's allocation medium anchor point;
When said communication square tube is crossed said medium anchor point communication, duplicate Content of communciation, to accomplish monitoring to said Content of communciation;
Said for before communication side's allocation medium anchor point; Also comprise: the media information that receives the communication side of monitoring from the needs that pass through the transmission of medium anchoring request message of IMS network element; Said medium anchoring request message comprises: call out outer message, the outer message of said calling comprises: the outer message of the calling of outer message of the calling in the Session initiation protocol SIP message or non-sip message.
The embodiment of the invention has also proposed the realization system that a kind of IP Multimedia System IMS monitors, and comprising:
Content of communciation monitoring triggering function CCTF; Being used to control session content monitoring copy function CC-IIF is communication side's allocation medium anchor point; And when said communication square tube is crossed said medium anchor point communication, control said CC-IIF and duplicate Content of communciation, to accomplish monitoring to said Content of communciation;
CC-IIF is used to communication side's allocation medium anchor point, and when said communication square tube is crossed said medium anchor point communication, duplicates the said system of Content of communciation and also comprise:
The IMS network element is used for through medium anchoring request message the media information of the communication side of grappling being sent to said CCTF; Said medium anchoring request message comprises: call out outer message, the outer message of said calling comprises: the outer message of the calling of outer message of the calling in the Session initiation protocol SIP message or non-sip message.
The embodiment of the invention has also proposed the implement device that a kind of IP Multimedia System IMS monitors, and comprising:
Receiver module; Be used to receive the media information of the communication side of monitoring from the needs that pass through the transmission of medium anchoring request message of IMS network element; Said medium anchoring request message comprises: call out outer message, the outer message of said calling comprises: the outer message of the calling of outer message of the calling in the Session initiation protocol SIP message or non-sip message;
First control module, being used to control session content monitoring copy function CC-IIF is communication side's allocation medium anchor point;
Second control module is used for when said communication square tube is crossed said medium anchor point communication, controlling said CC-IIF and duplicating Content of communciation, monitors with the IMS that accomplishes said Content of communciation.
The embodiment of the invention has also proposed the implement device that a kind of IP Multimedia System IMS monitors, and comprising:
Distribution module; Be used to communication side's allocation medium anchor point; Said for also comprising the media information of reception before communication side's allocation medium anchor point from the communication side of the needs monitoring of passing through the transmission of medium anchoring request message of IMS network element; Said medium anchoring request message comprises: call out outer message, the outer message of said calling comprises: the outer message of the calling of outer message of the calling in the Session initiation protocol SIP message or non-sip message;
Replication module is used for when said communication square tube is crossed said medium anchor point communication, duplicating Content of communciation, monitors with the IMS that accomplishes said Content of communciation.
Compared with prior art, the embodiment of the invention has the following advantages:
Through the monitoring to Content of communciation can be realized on the medium anchor point; Rather than must realize by existing medium access device; Thereby realized the concentrated monitoring of medium on IMS; Guarantee that the user who adopts variety of way to insert IMS can realize the concentrated monitoring of medium on IMS core, access side device is not required, and need between IMS core and access side device, not adopt the privately owned interface of expansion.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the implementation method flow chart that a kind of IMS of the embodiment of the invention one proposition monitors;
Fig. 2 is the implementation method flow chart that a kind of IMS of the embodiment of the invention two propositions monitors;
Fig. 3 is the implementation method flow chart that a kind of IMS of the embodiment of the invention three propositions monitors;
Fig. 4 is the realization system construction drawing that a kind of IMS of the embodiment of the invention four propositions monitors;
Fig. 5 is the implement device structure chart that a kind of IMS of the embodiment of the invention five propositions monitors;
Fig. 6 is the implement device structure chart that a kind of IMS of the embodiment of the invention six propositions monitors.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The implementation method that a kind of IMS that the embodiment of the invention one proposes monitors, as shown in Figure 1, comprising:
Step S101 is communication side's allocation medium anchor point;
Step S102 when said communication square tube is crossed said medium anchor point communication, duplicates Content of communciation, monitors with the IMS that accomplishes said Content of communciation.
Concrete, in the present embodiment, this communication side is the both sides of communication or in many ways, in all embodiment of the present invention, this communication Fang Jun is example with the communication two party.
Wherein, above-mentionedly comprise for communication side's allocation medium anchor point: it is communication side's allocation medium anchor point that the control session content is monitored copy function CC-IIF; The above-mentioned Content of communciation that duplicates comprises: control this CC-IIF and duplicate this Content of communciation.
Comprise for before communication side's allocation medium anchor point above-mentioned: the media information that receives the communication side of monitoring from the needs that pass through the transmission of medium anchoring request message of IMS network element.Above-mentioned for comprising after communication side's allocation medium anchor point: through the medium grappling as a result response message will send to the IMS network element for the result of the medium anchor point of communication side's distribution.Wherein, this IMS network element includes but not limited to: S-CSCF, AS, MGCF, P-CSCF.This medium anchoring request message includes but not limited to: Session initiation protocol SIP message, the outer message of calling in calling out; This grappling response message as a result includes but not limited to: Session initiation protocol SIP message, the outer message of calling in calling out; Wherein, the outer message of this calling includes but not limited to: the outer message of the calling of outer message of the calling in the sip message or non-sip message; The outer message of calling in this sip message includes but not limited to INFO or MESSAGE message; The outer message of the calling of this non-sip message includes but not limited to Diameter message.Sip message includes but not limited to directly the SIP conversation message issued as anchoring request message the message of CCTF in this calling.
In addition, above-mentioned Content of communciation includes but not limited to: voice call content, fax content, MODEM content, video calling content, data interaction content.Also comprise after duplicating Content of communciation above-mentioned: CC-IIF sends to listening center with Content of communciation; This sends to listening center with Content of communciation and includes but not limited to: be connected the mode of duplicating this Content of communciation on the connecting circuit through narrow band circuit this Content of communciation is sent to this listening center; Connect the mode of initiating to call out by the arrowband to listening center through narrow band circuit this Content of communciation is sent to this listening center; Be connected the mode of duplicating this Content of communciation in this IP connection through IP this Content of communciation is sent to this listening center; Be connected the mode of initiating the SIP calling in this IP connection through IP this Content of communciation is sent to this listening center.
It is thus clear that; In the present embodiment, can on the medium anchor point, realize, rather than must realize by existing medium access device through making monitoring to Content of communciation; Thereby realized the concentrated monitoring of medium on IMS; Guarantee that the user who adopts variety of way to insert IMS can realize the concentrated monitoring of medium on IMS core, access side device is not required, and need between IMS core and access side device, not adopt the privately owned interface of expansion.
Further,, realize the concentrated monitoring of medium on IMS, guarantee that the user who adopts variety of way to insert IMS can realize the concentrated monitoring of medium on IMS core through on IMS core, increasing CCTF module and CC-IIF module.And module CCTF, CC-IIF that newly-increased realization Media Stream is monitored be core network component, and it is inner only to be confined to IMS core, need between IMS core and access side device, not adopt the privately owned interface of expanding.
The implementation method that a kind of IMS that the embodiment of the invention two proposes monitors; In the IMS network architecture; Comprise CSCF, HSS (Home Subscriber Server, home subscriber server), AS (ApplicationServer, application server), MRFC (Multimedia Resource Control Function; Multimedia resource controlled function entity) and PDF (Policy Decision Function, policy determination functional entity).Above-mentioned CSCF is used to control user's registration and session, and HSS is used to manage concentratedly user contracting data, and AS is used to provide miscellaneous service logic control function.Wherein, CSCF is divided into P-CSCF (Proxy-CSCF, proxy CSCF); I-CSCF (Interrogating-CSCF, inquiry CSCF), S-CSCF (Serving-CSCF; Serving CSCF); Above-mentioned P-CSCF, I-CSCF and S-CSCF physically can lump together the formation functional module, also can separately be respectively different functional, and the user is linked into IMS through the P-CSCF of home network; The S-CSCF of home network accomplishes the triggering control of session and business and controls mutual with the business of AS; I-CSCF then is used for the inquiry of route.P-CSCF is UE (User Equipment; Subscriber equipment) inlet of access IMS system; S-CSCF is responsible for register and authentication and the session control to UE in the IMS core net; Carry out basic session routing function, and according to the IMS triggering rule that the user contracts, the value-added service triggering and the professional control that when condition satisfies, proceed to AS are mutual to calling terminal and called end IMS user.
The IMS network architecture is divided into access interconnection layer, session control layer and application layer, wherein, inserts initiation and termination that interconnection layer can be accomplished the SIP session of all kinds of sip terminals; Realize the grouping of IP, and carry out the conversion between the bearer types; Control according to service deployment and session layer realizes QoS (Quality ofService, service quality) strategy; Accomplish and PSTN (Public Service TelecommunicationNetwork; Tradition public service telecommunications network)/PLMN (Public Land Mobile Network; Interconnecting the public land mobile radio communication), this access interconnection layer includes but not limited to equipment such as all kinds of sip terminals, wired access, wireless access, the gateway that interconnects.Session layer can be accomplished the control of basic session; Accomplish user's registration, the control of SIP session route; Carry out functions such as session in the applied business, maintenance management user data, management service qos policy alternately with application server, for all users consistent service environment is provided together with application layer.
In the IMS system, SIP is the basic agreement of IMS, for develop with continuous research in agreement; It is the multimedia communications system framework agreement; And based on text code, can accomplish multimedia conversation procedure, be used to set up, change the perhaps application layer protocol of ending multimedia session; Cooperate with multimedia stream protocol, accomplish session foundation and media negotiation among the IMS jointly.The implementation method that this IMS monitors is as shown in Figure 2, comprising:
Step S201; On IMS core, increase CCTF (Content of Communication TriggerFunction; Content of communciation monitoring triggering function) module and CC-IIF (Content of communicationInternal Intercept Function, session content monitoring triggering function) module.
Concrete; This CCTF is implemented in the concentrated signaling control function of monitoring of medium on the IMS Core; This CC-IIF is implemented in the concentrated medium replication function of monitoring of medium on the IMS Core; This CCTF can anchor to the medium of being monitored session on the CC-IIF of IMS core, and this CC-IIF can duplicate the medium of being monitored session and flow on the LIG (Lawful Intercept Gateway, Lawful interception gateway).
Step S202 when in the IMS system, setting up session, needed before setting up session, and the session both sides are carried out the initialization of session, promptly obtained user's media information through sip message.This media information includes but not limited to SDP (Session Description Protocol, Session Description Protocol) address information and eavesdropping target's information.
Step S203 is set to intercept target on the IMS network element, and when conversation request was routed to the IMS network element of intercept target home network, the IMS network element was judged this session and need be monitored, and monitoring is monitored the media consultation process of session.
Concrete, this IMS network element includes but not limited to S-CSCF, P-CSCF, AS, MGCF (MGCF), in the present embodiment, this IMS network element is example with S-CSCF.
Step S204, S-CSCF sends to CCTF with SDP address information and eavesdropping target's information of media negotiation operation.
Concrete; Initialized the time; The above-mentioned SDP address information of obtaining and eavesdropping target's information will be passed through the S-CSCF in user attaching territory; When SDP address information and eavesdropping target's information via S-CSCF, this S-CSCF sends to CCTF through medium anchoring request message with SDP address information and eavesdropping target's information.This medium anchoring request message includes but not limited to: sip message in calling out and the outer message of calling.Invite message in sip message in this calling includes but not limited to call out, reinvite message, 18 * message, 2 * * message; The outer message of this calling includes but not limited to call out outer SIP INFO, SIP MESSAGE message; The outer message of a kind of sip message, this calling that outer INFO of this calling or MESSAGE message are based on Session Initiation Protocol can also be the outer message of the calling of non-sip message; The outer message of the calling of this non-sip message includes but not limited to Diameter; Such as the AAR (AA-Request that can be Diameter (follow-on aaa protocol standard); The AA request) AAA (AA-Answer of message and Diameter; AA replys) message of content realizations such as message and the user profile that SDP information, monitorings is needed through Diameter expansion AVP (Attribute-Length-Value, the property value in the basic agreement of Diameter), operation indication information.Above-mentioned SDP address information is the address information of communication side, and the communication square tube is crossed this SDP address information and carried out communication, and this eavesdropping target's information includes but not limited to monitor the user profile that needs, the address information of operating indication information, both call sides.Above-mentioned SDP address information and eavesdropping target's information can leave in the expansion header field of INFO or MESSAGE message, also can be packaged into XML (eXtensible Markup Language, extend markup language) form and be filled into SIPbody (inside).This CCTF is the functional module that IMS realizes media monitoring, can be an independent network element, also can coexist as MGCF (MGCF) and go up or coexist as on the S-CSCF.Sip message in the above-mentioned calling is meant the message that SDP address information and eavesdropping target's information is sent to CCTF through sip message; Call out outer message and be meant the message that through message SDP address information and eavesdropping target's information is sent to CCTF in addition.In the present embodiment, the outer message of above-mentioned calling is not for receiving the message of INVITE request and the restriction of To-Tag200 response path.For example, INVITE request adds to have accordingly between the To-Tag200 response (or 101-199 Temporary Response) can create dialogue (Dialog), and this dialogue is the relation of SIP end to end between two users of a certain time.In using session during message; Message need ask and have the path of setting up between the To-Tag200 response accordingly to transmit according to this INVITE in this session; SIP request and response in dialogue; Routed path is received the restriction that all can be talked with, and the rule of carrying in the header field of the interior message of session also need be deferred to this dialogue.Call out outer message and then can not receive the restriction of carrying rule in above-mentioned path and the header field; In the present embodiment, can give CCTF with the SDP address information grappling of communication two party from INVITE request and any S-CSCF that has accordingly on the path of setting up between the To-Tag200 response through using the outer message of this calling.
Step S205 distributes the SDP address end points of monitoring for the session both sides.
Concrete, the SDP media formats of the SDP address end points of this distribution is identical with the media formats of the SDP address information that S-CSCF sends.Should can distribute the SDP address end points of monitoring for CCTF for the session both sides for the session both sides distribute the main body of the SDP address end points of monitoring; Also can control CC-IIF distributes monitoring for the session both sides SDP address end points for CCTF; In the present embodiment, be that to distribute the SDP address end points of monitoring be that example describes to the session both sides with CCTF control CC-IIF.
Step S206, CCTF returns to S-CSCF with SDP address terminal point information as the grappling result.
Step S207, S-CSCF replaces original SDP address according to newly assigned SDP address end points, accomplishes the preparation of monitoring.
Concrete, above-mentioned SDP address end points is CCTF and the session both sides distinguish employed terminal point information when mutual, for example; The first and second two users are arranged, and the SDP end points of party a subscriber is A, and the SDP end points of party b subscriber is B; At initial phase; The IMS network element can also can be notified party a subscriber with the SDP address information (address information terminal B) of party b subscriber, when both sides' session with SDP address information (address information terminal A) the notice party b subscriber of party a subscriber; Party a subscriber and party b subscriber directly carry out session according to both sides' SDP information, promptly carry out session according to original SDP address.In the time need monitoring to both sides' session; At initial phase, the IMS network element is through using the SDP address information notice CCTF of medium anchoring request message with party a subscriber, and this CCTF control CC-IIF is that party a subscriber distributes SDP address end points; Be the SDP address information (address information end points C) of party a subscriber distribution and party a subscriber session; Same, it is that party b subscriber distributes SDP address end points that this CCTF also need control CC-IIF, is the SDP address information (address information end points D) of party b subscriber distribution and party b subscriber session; While CC-IIF also is required to be end points C and is connected with end points D foundation conversation; When both sides' session, the terminal A of party a subscriber is carried out voice (or data) packet switch according to SDP address information and end points C, and the terminal B of party b subscriber is carried out voice (or data) packet switch according to SDP address information and end points D; Connect and set up conversation between end points C and the end points D; Promptly between party a subscriber and party b subscriber, set up session, promptly used the SDP address of newly assigned SDP address end points replacement, thereby accomplished the preparation of monitoring.
Step S208, after the session among the IMS was set up successfully, the session both sides carry out voice (or data) packet switch of session will pass through the SDP address end points that CCTF distributes, and at this moment, carries out medium replication, and gives listening center with the delivery of content of conversation.This main body of carrying out medium replication can be carried out medium replication for CCTF, also can carry out medium replication for CCTF controls CC-IIF, and in the present embodiment, carrying out medium replication with CCTF control CC-IIF is that example describes.
Concrete, session is replaced by the SDP address information that CC-IIF goes up the medium end points of application through the SDP address information in the media negotiation operation of S-CSCF.The calling subscriber can regard CC-IIF as this session called, and the called subscriber can regard CC-IIF as the caller of this session.When the media negotiation completion began to set up Media Stream, all conversation media streams were set up through CC-IIF.When CCTF control this moment CC-IIF realized that the calling and called Media Stream continues, duplicate media stream realized the monitoring of Media Stream to LIG or LEMF.Duplicate media stream can adopt different modes according to the requirement of listening center to the mode of LIG or LEMF, includes but not limited to that specifically connecting the mode of directly on connecting circuit, duplicating Content of communciation through narrow band circuit sends to listening center with Content of communciation; Connect the mode of initiating to call out by the arrowband to listening center through narrow band circuit Content of communciation is sent to listening center; Connect the mode of directly in the IP connection, duplicating Content of communciation through IP Content of communciation is sent to listening center; Be connected the mode of initiating the SIP calling in the IP connection through IP Content of communciation is sent to listening center.
In above-mentioned process of carrying out session; If renewal has taken place in medium in the communication process; For example, converted facsimile posting to by communication process, then CCTF only need control the address information that motoring gateway changes over original both sides' talk address information fax; Then S-CSCF can continue to use medium anchoring request message that media negotiation is anchored to CCTF, and CC-IIF accomplishes medium replication by CCTF control.In embodiments of the present invention; This monitor method is not only applicable to the monitoring to session; Can also monitor various Content of communciations such as fax content, MODEM content, video calling content, data interaction content according to this monitor method; As long as the conversation between the user is that good through consultation medium exchange in the IMS territory, can realize monitoring according to the method in the present embodiment.
Above-mentioned monitor method can also be applicable to the monitoring of various supplementary services; For example, monitor in (CallForwarding Unconditional, unconditioned call connection) business at CFU; Business can be professional with signatory CFU, is Call Forwarding to the third such as the signatory CFU business of second.Calling party's first is dialed professional Fang Yi, then the S-CSCF of second with call to the AS of second, AS initiate new SIP call out the third, the third accept first calling, and second can't be participated in this conversation, finally lets third liang of square tube word of first.If professional Fang Yi is monitored, then the S-CSCF of second calls out before the AS in triggering and initiates grappling to CCTF, and AS initiates a call on third the path and no longer initiates grappling.All afterwards SDP can both pass through CCTF alternately; And CCTF control CC-IIF is that two sides distribute SDP address end points respectively; CCTF control CC-IIF is that two sides distribute the process of SDP address end points identical with the process of distribution SDP address end points among the step S204 respectively, repeats no more at this.After session was set up successfully, the voice of both call sides (or data) all can pass through the SDP address end points on the CCTF alternately, and CCTF can control motoring gateway and carry out medium replication, and gave listening center with the delivery of content of conversation.Above-mentioned supplementary service includes but not limited to that Call Forwarding Unconditional, divert when busy, Call Forwarding No Reply, Call Waiting, Conference Calling adding, hooking shift.
Thus it is clear that, in the present embodiment, can on the medium anchor point, realize, rather than must realize, thereby realize the concentrated monitoring of medium on IMS by existing medium access device through making monitoring to Content of communciation.Further,, realize the concentrated monitoring of medium on IMS, guarantee that the user who adopts variety of way to insert IMS can realize the concentrated monitoring of medium on IMS core through on IMS core, increasing CCTF module and CC-IIF module.And module CCTF, CC-IIF that newly-increased realization Media Stream is monitored are core network component; Belong to the matching component that IMS core realizes Lawful Interception; Guaranteed that the privately owned interface that adopts is only inner at IMS core, need between IMS core and access side device, not adopt the privately owned interface of expansion.
The implementation method that a kind of IMS that the embodiment of the invention three proposes monitors in the present embodiment, is an intercept target with calling subscriber A; S-CSCF adopts the Info message SDP information outside the session between CCTF; In the present embodiment, S-CSCF and P-CSCF are the S-CSCF and the P-CSCF of user A ownership place, and it is the monitoring flow process of example explanation basic call that CCTF and CC-IIF adopt message H.248; As shown in Figure 3, comprising:
Step S301, the user A P-CSCF under user A sends conversation request message, the SDP address information of having carried user A in this message.
Step S302, the P-CSCF under the user A is transmitted to the S-CSCF under the user A, the SDP address information of having carried user A in this message with the session request message.
Step S303, S-CSCF sends to CCTF through the outer Info message of session with the SDP address information of user A.
Step S304, CCTF send the request message of the SDP end points of application medium anchor point to CC-IIF.
Step S305, CC-IIF returns response message to CCTF, has carried the address information of the SDP end points of the medium anchor point that distributes for user A in the said message.
Step S306, CCTF sends to S-CSCF for the SDP terminal point information that user A distributes through 200 message with CC-IIF.
Step S307, S-CSCF sends conversation request message to AS, has carried the SDP terminal point information that CC-IIF distributes for user A in this message.
Step S308; AS returns conversation request message to S-CSCF, can carry the SDP terminal point information that CC-IIF distributes for user A in this message, in the present embodiment; AS does not handle above-mentioned conversation request message, and promptly the conversation request message through AS can not change.
Step S309, S-CSCF sends conversation request message to user B, has carried the SDP terminal point information that CC-IIF distributes for user A in this message.
Step S310, user B returns 183 Temporary Response message to S-CSCF, carries the SDP address information of the user B that knows clearly in this message.
Step S311, S-CSCF sends 183 Temporary Response message to AS, has carried the SDP address information of user B in this message.
Step S312, AS returns 183 Temporary Response message to S-CSCF, and is same; Can carry the SDP address information of user B in this message; In the present embodiment, AS does not handle 183 above-mentioned Temporary Response message, and promptly 183 Temporary Response message through AS can not change.
Step S313, S-CSCF sends to CCTF through the outer Info message of session with the SDP address information of user B.
Step S314, CCTF send the request message of application SDP end points to CC-IIF.
Step S315, CC-IIF returns response message to CCTF, has carried the address information of the SDP end points that distributes for user B in the said message.
Step S316, CCTF sends to S-CSCF for the SDP terminal point information that user B distributes through 200 message with CC-IIF.
Step S317, S-CSCF sends 183 Temporary Response message to P-CSCF, carries the address information of CC-IIF for the SDP end points of user B distribution of knowing clearly in this message.
Step S318, P-CSCF sends 183 Temporary Response message to user A, carries the address information of CC-IIF for the SDP end points of user B distribution of knowing clearly in this message.
Step S319, user A send 200 request messages of creating dialogue to user B.
Step S320, user B sends 200 conversation request message to S-CSCF.
Step S321, S-CSCF sends 200 conversation request message to AS.
Step S322, AS returns 200 conversation request message to S-CSCF.
Step S323, S-CSCF sends to CCTF through the information that the outer Info message of session will begin medium replication.
Step S324, CCTF send the request message of medium replication to CC-IIF.
Step S325, CC-IIF be to medium replication, and the content of duplicating is sent to LIGL or EMF.
Step S326, CC-IIF returns the message that medium have duplicated to CCTF.
Step S327, CCTF sends 200 message to S-CSCF.
Step S328, S-CSCF sends 200 request messages to P-CSCF.
Step S329, P-CSCF sends 200 request messages to user A.
Step S330, user A sends response message to user B.
Step S331, user A sends end to P-CSCF.
Step S332, P-CSCF sends end to S-CSCF.
Step S333, S-CSCF sends end to AS.
Step S334, AS sends end to S-CSCF.
Step S335, S-CSCF sends end to user B.
Step S336, user B send 200 to user A and finish response.
Thus it is clear that, in the present embodiment, can on the medium anchor point, realize, rather than must realize, thereby realize the concentrated monitoring of medium on IMS by existing medium access device through making monitoring to Content of communciation.Further,, realize the concentrated monitoring of medium on IMS, guarantee that the user who adopts variety of way to insert IMS can realize the concentrated monitoring of medium on IMS core through on IMS core, increasing CCTF module and CC-IIF module.And module CCTF, CC-IIF that newly-increased realization Media Stream is monitored are core network component; Belong to the matching component that IMS core realizes Lawful Interception; Guaranteed that the privately owned interface that adopts is only inner at IMS core, need between IMS core and access side device, not adopt the privately owned interface of expansion.Through using S-CSCF grappling media information to give CCTF, make when supplementary service takes place, also can realize the media monitoring of supplementary service.All business of IMS are all concentrated at the S-CSCF of home network and are triggered, and have guaranteed that all users concentrate the monitoring that realizes Media Stream at home network.
The realization system that a kind of IMS that the embodiment of the invention four proposes monitors, as shown in Figure 4, comprising:
CCTF 42, are used to control CC-IIF 43 and are communication side's allocation medium anchor point, and when this communication square tube is crossed this medium anchor point communication, control this CC-IIF 43 and duplicate Content of communciation, monitor with the IMS that accomplishes this Content of communciation;
CC-IIF 43, are used to communication side's allocation medium anchor positioning information, and when this communication square tube is crossed this medium anchor point communication, duplicate Content of communciation.
It is thus clear that; In the present embodiment,, realize the concentrated monitoring of medium on IMS through on IMS core, increasing CCTF module and CC-IIF module; Guarantee that the user who adopts variety of way to insert IMS can realize the concentrated monitoring of medium on IMS core, do not require access side device.And module CCTF, CC-IIF that newly-increased realization Media Stream is monitored be core network component, belongs to the matching component that IMS core realizes Lawful Interception, need between IMS core and access side device, not adopt the privately owned interface of expanding.
The implement device that a kind of IMS that the embodiment of the invention five proposes monitors, this device is for CCTF, and is as shown in Figure 5, comprising:
It is thus clear that; In the present embodiment,, realize the concentrated monitoring of medium on IMS through on IMS core, increasing CCTF module and CC-IIF module; Guarantee that the user who adopts variety of way to insert IMS can realize the concentrated monitoring of medium on IMS core, do not require access side device.And module CCTF, CC-IIF that newly-increased realization Media Stream is monitored be core network component, belongs to the matching component that IMS core realizes Lawful Interception, need between IMS core and access side device, not adopt the privately owned interface of expanding.
The implement device that a kind of IMS that the embodiment of the invention six proposes monitors, this device is for CC-IIF, and is as shown in Figure 6, comprising:
Sending module 63 is used for the Content of communciation that replication module 62 duplicates is sent to listening center, and this listening center includes but not limited to LIG or LEMF.Content of communciation is sent to listening center to be included but not limited to: connect the mode of directly on connecting circuit, duplicating Content of communciation through narrow band circuit Content of communciation is sent to listening center; Connect the mode of initiating to call out by the arrowband to listening center through narrow band circuit Content of communciation is sent to listening center; Connect the mode of directly in the IP connection, duplicating Content of communciation through IP Content of communciation is sent to listening center; Be connected the mode of initiating the SIP calling in the IP connection through IP Content of communciation is sent to listening center.
It is thus clear that, in the present embodiment,, realize the concentrated monitoring of medium on IMS through on IMS core, increasing CCTF module and CC-IIF module, guarantee that the user who adopts variety of way to insert IMS can realize the concentrated monitoring of medium on IMS core.And module CCTF, CC-IIF that newly-increased realization Media Stream is monitored be core network component, belongs to the matching component that IMS core realizes Lawful Interception, need between IMScore and access side device, not adopt the privately owned interface of expanding.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize through hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding; Technical scheme of the present invention can be come out with the embodied of software product, this software product can be stored in a non-volatile memory medium (can be CD-ROM, USB flash disk; Portable hard drive etc.) in; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be looked protection scope of the present invention.
Claims (11)
1. the implementation method that IP Multimedia System IMS monitors is characterized in that, comprising:
Be communication side's allocation medium anchor point;
When said communication square tube is crossed said medium anchor point communication, duplicate Content of communciation, to accomplish monitoring to said Content of communciation;
Said for before communication side's allocation medium anchor point; Also comprise: the media information that receives the communication side of monitoring from the needs that pass through the transmission of medium anchoring request message of IMS network element; Said medium anchoring request message comprises: call out outer message, the outer message of said calling comprises: the outer message of the calling of outer message of the calling in the Session initiation protocol SIP message or non-sip message.
2. the method for claim 1 is characterized in that, saidly comprises for communication side's allocation medium anchor point: it is communication side's allocation medium anchor point that the control session content is monitored copy function CC-IIF;
The said Content of communciation that duplicates comprises: control said CC-IIF and duplicate said Content of communciation.
3. the method for claim 1 is characterized in that,, also comprises for after communication side's allocation medium anchor point said:
Through the medium grappling as a result response message will send to the IMS network element for the medium anchor point that communication side distributes.
4. like claim 1 or 3 described methods, it is characterized in that said IMS network element comprises one or more in following:
Service call conversation control function S-CSCF;
Application server AS;
MGCF MGCF;
Proxy Call Session Control Function P-CSCF.
5. method as claimed in claim 3 is characterized in that, grappling response message as a result comprises: call out outer message;
The outer message of said calling comprises: the outer message of the calling of outer message of the calling in the sip message or non-sip message; The outer message of calling in the said sip message comprises INFO or MESSAGE message; The outer message of the calling of said non-sip message comprises Diameter message.
6. the method for claim 1 is characterized in that, said Content of communciation comprises: one or more in voice call content, fax content, MODEM content, video calling content, the data interaction content.
7. method as claimed in claim 2 is characterized in that, said duplicate Content of communciation after, also comprise:
Said CC-IIF sends to listening center with said Content of communciation;
Saidly Content of communciation sent to listening center comprise in following one or more:
Be connected the mode of duplicating said Content of communciation on the connecting circuit through narrow band circuit said Content of communciation is sent to said listening center;
Connect the mode of initiating to call out by the arrowband to listening center through narrow band circuit said Content of communciation is sent to said listening center;
Be connected the mode of duplicating said Content of communciation in the said IP connection through IP said Content of communciation is sent to said listening center;
Be connected the mode of initiating the SIP calling in the said IP connection through IP said Content of communciation is sent to said listening center.
8. the realization system that IP Multimedia System IMS monitors is characterized in that, comprising:
Content of communciation monitoring triggering function CCTF; Being used to control session content monitoring copy function CC-IIF is communication side's allocation medium anchor point; And when said communication square tube is crossed said medium anchor point communication, control said CC-IIF and duplicate Content of communciation, to accomplish monitoring to said Content of communciation;
CC-IIF is used to communication side's allocation medium anchor point, and when said communication square tube is crossed said medium anchor point communication, duplicates Content of communciation;
Said system also comprises:
The IMS network element is used for through medium anchoring request message the media information of the communication side of grappling being sent to said CCTF; Said medium anchoring request message comprises: call out outer message, the outer message of said calling comprises: the outer message of the calling of outer message of the calling in the Session initiation protocol SIP message or non-sip message.
9. the implement device that IP Multimedia System IMS monitors is characterized in that, comprising:
Receiver module; Be used to receive the media information of the communication side of monitoring from the needs that pass through the transmission of medium anchoring request message of IMS network element; Said medium anchoring request message comprises: call out outer message, the outer message of said calling comprises: the outer message of the calling of outer message of the calling in the Session initiation protocol SIP message or non-sip message;
First control module, being used to control session content monitoring copy function CC-IIF is communication side's allocation medium anchor point;
Second control module is used for when said communication square tube is crossed said medium anchor point communication, controlling said CC-IIF and duplicating Content of communciation, to accomplish the monitoring to said Content of communciation.
10. the implement device that IP Multimedia System IMS monitors is characterized in that, comprising:
Distribution module; Be used for after CCTF receives the media information of the communication side of monitoring from the needs that pass through the transmission of medium anchoring request message of IMS network element; Be communication side's allocation medium anchor point; Said medium anchoring request message comprises: call out outer message, the outer message of said calling comprises: the outer message of the calling of outer message of the calling in the Session initiation protocol SIP message or non-sip message;
Replication module is used for when said communication square tube is crossed said medium anchor point communication, duplicating Content of communciation, to accomplish the monitoring to said Content of communciation.
11. device as claimed in claim 10 is characterized in that, also comprises:
Sending module is used for said Content of communciation is sent to listening center.
Priority Applications (4)
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|---|---|---|---|
| CN200810180539A CN101420432B (en) | 2008-12-01 | 2008-12-01 | Implementing method, system and apparatus for IMS listening |
| EP09829958.9A EP2247031B1 (en) | 2008-12-01 | 2009-07-22 | Implementation method, system and device for ims monitoring |
| PCT/CN2009/072863 WO2010063174A1 (en) | 2008-12-01 | 2009-07-22 | Implementation method, system and device for ims monitoring |
| US12/628,416 US8320363B2 (en) | 2008-12-01 | 2009-12-01 | Implementation method, system and device of IMS interception |
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| CN200810180539A CN101420432B (en) | 2008-12-01 | 2008-12-01 | Implementing method, system and apparatus for IMS listening |
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| EP (1) | EP2247031B1 (en) |
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| CN101420432B (en) * | 2008-12-01 | 2012-10-17 | 华为技术有限公司 | Implementing method, system and apparatus for IMS listening |
| US8320363B2 (en) | 2008-12-01 | 2012-11-27 | Huawei Technologies Co., Ltd. | Implementation method, system and device of IMS interception |
| CN101583129A (en) * | 2009-06-12 | 2009-11-18 | 中兴通讯股份有限公司 | Legal interception system and method in IP multi-media subsystem network |
| US8886789B2 (en) * | 2010-05-19 | 2014-11-11 | Avaya Inc. | SIP monitoring and control anchor points |
| US9450989B2 (en) | 2010-05-19 | 2016-09-20 | Avaya Inc. | SIP anchor points to populate common communication logs |
| CN101980481B (en) * | 2010-11-05 | 2012-12-05 | 杭州思福迪信息技术有限公司 | Method for realizing session replication and tracking during security terminal emulation protocol monitoring |
| CN102487520B (en) * | 2010-12-02 | 2015-08-12 | 中兴通讯股份有限公司 | Media content monitor method and device in IP Multimedia System |
| CN102487521B (en) * | 2010-12-03 | 2016-06-08 | 中兴通讯股份有限公司 | Media content monitor method and device in IP Multimedia System |
| US8510435B2 (en) | 2010-12-27 | 2013-08-13 | Avaya Inc. | Highly scalable and distributed call/media modeling and control framework |
| CN102647311A (en) * | 2012-04-28 | 2012-08-22 | 中兴通讯股份有限公司南京分公司 | Instruction and implementation methods and device for communication monitoring |
| EP3086593B1 (en) * | 2015-04-20 | 2019-09-11 | Vodafone IP Licensing limited | Network entity and method for monitoring an ims-based service |
| CN108235299B (en) * | 2016-12-21 | 2020-08-28 | 中国移动通信集团公司 | VoLTE media surface quality testing method and device |
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| Publication number | Publication date |
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| EP2247031B1 (en) | 2018-07-18 |
| EP2247031A1 (en) | 2010-11-03 |
| WO2010063174A1 (en) | 2010-06-10 |
| CN101420432A (en) | 2009-04-29 |
| EP2247031A4 (en) | 2013-01-09 |
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